Seems Warp Speed DOS XL isn't vaporware after all.
When I started working on my Action!-related Retrochallenge project a couple weeks ago, I decided it would be fitting to use an OSS DOS. I have two physical OSS floppy+manuals I acquired a couple years ago from a now defunct used electronics seller near me. One is OS/A+ and the other is DOS XL. I haven't used them until now.
After giving up on OS/A+ version 4 (having trouble enabling drives D3 and on), I started using the DOS XL instead and noticed my version number on the screen banner / title wasn't matching the ATR files found in the usual places (atariwiki.org, archive.org, atarimania.com). After searching around to find out more about the version, I came across this thread.
Attached should be an .ATR of OSS Warp Speed DOS XL Ver. 2.42w. The DOS XL was side "B" to a Happy "Warp Speed Software" rev 6.6 floppy disk. I was unable to create a copy of the Warp Speed Software. The manual that accompanied the floppy has "Version 2.30" on it's title page, so I don't think there's anything new to be found there. There are some .DOC files that may yield some help.
The label for the DOS XL diskette has the hand-written inscription "WS", presumably "Warp Speed". I don't know if this was added by the previous owner, OSS Inc., or Happy Computer, Inc. Besides a file called "HAPPY.DOC", there are 3 files in the directory listing with a "WS" prefix:
Hope this fills a small hole in the Atari 8-bit universe.
Contents of the text file HAPPY.DOC
The WS in front of the BUG65,AXLON,
and RAMXE files stands for WARP SPEED
The obvious difference between OSS
DOSXL and WARP SPEED DOSXL is the
faster speed at which it works.
One of the other changes is that we
added density smart routines to
automatically detect single or double
density disks without having to hit
the reset button when using the
HAPPY 1050 enhanced drive.
For those of you who own the MOSAIC
RAMDISK, we're sorry but we don't
have a version for you. We were
unable to obtain a MOSAIC RAMDISK
board set so we could not develop
and support software for that
The FAST WRITE WITH VERIFY is
automatically turned on for HAPPY
DRIVES. This means all writes are
write with verify. Also you MUST
NOT remove the disk from the drive,
or open the door after writing, until
the busy light goes off or else loss
of data may occur. The drive flashes
the busy light on and off when write
or verify errors occur.
If you press SYSTEM RESET after
writing to the disk, you must wait
until the drive busy light goes out
before doing any other disk operation
to ensure no loss of data. The drive
busy light does NOT flash on and off
for errors of this type.
For those of you who also have the
CONTROLLER installed in your 1050,
DO NOT write to a disk when the
slow/fast switch is in the SLOW
position or you will get some
incorrect data written! The only
time you should switch to slow is
when you are booting a protected disk
that won't otherwise boot. Also
DO NOT write to a disk that has the
FORCE SLOW MODE on it or the same
thing will happen.